Abstract

Results of mathematical modeling and whole cell 16S ribosomal RNA-targeted fluorescence in situ hybridizations challenge the widely held perception that microbial populations in "steady-state" activated sludge systems share a common net growth rate that is proportional to the inverse of the mean cell residence time. Our results are significant because they encourage bioprocess engineers to appreciate the differences in growth physiology among individual microbial populations in complex mixed microbial communities such as suspended growth activated sludge bioreactor systems.

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Biological sewage treatment; Biomass; Bioreactors; Cells; Ecology; Fluorescence; Growth kinetics; Mathematical models; Microbiology; RNA; Activated sludge systems; Dynamic growth rates; Growth physiology; Microbial populations; Activated sludge process; activated sludge; biological treatment; mathematical modeling; microbial pollutant; Microbes

International Standard Serial Number (ISSN)

07339372

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2005 American Society of Civil Engineers (ASCE), All rights reserved.

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